#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int func(int a) {
	int b;
	switch (a) {
	case 1: b = 30;
	case 2: b = 20;
	case 3: b = 16;
	default: b = 0;
	}
	return b;
}
int main()
{
	printf("%d\n",func(1));
	return 0;
}